1 // SPDX-License-Identifier: GPL-2.0-only
2
3 #include <asm/mach-ralink/mt7620.h>
4 #include <linux/module.h>
5 #include <linux/platform_device.h>
6 #include <linux/of.h>
7 #include "pinmux.h"
8
9 #define MT7620_GPIO_MODE_UART0_SHIFT 2
10 #define MT7620_GPIO_MODE_UART0_MASK 0x7
11 #define MT7620_GPIO_MODE_UART0(x) ((x) << MT7620_GPIO_MODE_UART0_SHIFT)
12 #define MT7620_GPIO_MODE_UARTF 0x0
13 #define MT7620_GPIO_MODE_PCM_UARTF 0x1
14 #define MT7620_GPIO_MODE_PCM_I2S 0x2
15 #define MT7620_GPIO_MODE_I2S_UARTF 0x3
16 #define MT7620_GPIO_MODE_PCM_GPIO 0x4
17 #define MT7620_GPIO_MODE_GPIO_UARTF 0x5
18 #define MT7620_GPIO_MODE_GPIO_I2S 0x6
19 #define MT7620_GPIO_MODE_GPIO 0x7
20
21 #define MT7620_GPIO_MODE_NAND 0
22 #define MT7620_GPIO_MODE_SD 1
23 #define MT7620_GPIO_MODE_ND_SD_GPIO 2
24 #define MT7620_GPIO_MODE_ND_SD_MASK 0x3
25 #define MT7620_GPIO_MODE_ND_SD_SHIFT 18
26
27 #define MT7620_GPIO_MODE_PCIE_RST 0
28 #define MT7620_GPIO_MODE_PCIE_REF 1
29 #define MT7620_GPIO_MODE_PCIE_GPIO 2
30 #define MT7620_GPIO_MODE_PCIE_MASK 0x3
31 #define MT7620_GPIO_MODE_PCIE_SHIFT 16
32
33 #define MT7620_GPIO_MODE_WDT_RST 0
34 #define MT7620_GPIO_MODE_WDT_REF 1
35 #define MT7620_GPIO_MODE_WDT_GPIO 2
36 #define MT7620_GPIO_MODE_WDT_MASK 0x3
37 #define MT7620_GPIO_MODE_WDT_SHIFT 21
38
39 #define MT7620_GPIO_MODE_MDIO 0
40 #define MT7620_GPIO_MODE_MDIO_REFCLK 1
41 #define MT7620_GPIO_MODE_MDIO_GPIO 2
42 #define MT7620_GPIO_MODE_MDIO_MASK 0x3
43 #define MT7620_GPIO_MODE_MDIO_SHIFT 7
44
45 #define MT7620_GPIO_MODE_I2C 0
46 #define MT7620_GPIO_MODE_UART1 5
47 #define MT7620_GPIO_MODE_RGMII1 9
48 #define MT7620_GPIO_MODE_RGMII2 10
49 #define MT7620_GPIO_MODE_SPI 11
50 #define MT7620_GPIO_MODE_SPI_REF_CLK 12
51 #define MT7620_GPIO_MODE_WLED 13
52 #define MT7620_GPIO_MODE_JTAG 15
53 #define MT7620_GPIO_MODE_EPHY 15
54 #define MT7620_GPIO_MODE_PA 20
55
56 static struct rt2880_pmx_func i2c_grp[] = { FUNC("i2c", 0, 1, 2) };
57 static struct rt2880_pmx_func spi_grp[] = { FUNC("spi", 0, 3, 4) };
58 static struct rt2880_pmx_func uartlite_grp[] = { FUNC("uartlite", 0, 15, 2) };
59 static struct rt2880_pmx_func mdio_grp[] = {
60 FUNC("mdio", MT7620_GPIO_MODE_MDIO, 22, 2),
61 FUNC("refclk", MT7620_GPIO_MODE_MDIO_REFCLK, 22, 2),
62 };
63 static struct rt2880_pmx_func rgmii1_grp[] = { FUNC("rgmii1", 0, 24, 12) };
64 static struct rt2880_pmx_func refclk_grp[] = { FUNC("spi refclk", 0, 37, 3) };
65 static struct rt2880_pmx_func ephy_grp[] = { FUNC("ephy", 0, 40, 5) };
66 static struct rt2880_pmx_func rgmii2_grp[] = { FUNC("rgmii2", 0, 60, 12) };
67 static struct rt2880_pmx_func wled_grp[] = { FUNC("wled", 0, 72, 1) };
68 static struct rt2880_pmx_func pa_grp[] = { FUNC("pa", 0, 18, 4) };
69 static struct rt2880_pmx_func uartf_grp[] = {
70 FUNC("uartf", MT7620_GPIO_MODE_UARTF, 7, 8),
71 FUNC("pcm uartf", MT7620_GPIO_MODE_PCM_UARTF, 7, 8),
72 FUNC("pcm i2s", MT7620_GPIO_MODE_PCM_I2S, 7, 8),
73 FUNC("i2s uartf", MT7620_GPIO_MODE_I2S_UARTF, 7, 8),
74 FUNC("pcm gpio", MT7620_GPIO_MODE_PCM_GPIO, 11, 4),
75 FUNC("gpio uartf", MT7620_GPIO_MODE_GPIO_UARTF, 7, 4),
76 FUNC("gpio i2s", MT7620_GPIO_MODE_GPIO_I2S, 7, 4),
77 };
78 static struct rt2880_pmx_func wdt_grp[] = {
79 FUNC("wdt rst", 0, 17, 1),
80 FUNC("wdt refclk", 0, 17, 1),
81 };
82 static struct rt2880_pmx_func pcie_rst_grp[] = {
83 FUNC("pcie rst", MT7620_GPIO_MODE_PCIE_RST, 36, 1),
84 FUNC("pcie refclk", MT7620_GPIO_MODE_PCIE_REF, 36, 1)
85 };
86 static struct rt2880_pmx_func nd_sd_grp[] = {
87 FUNC("nand", MT7620_GPIO_MODE_NAND, 45, 15),
88 FUNC("sd", MT7620_GPIO_MODE_SD, 47, 13)
89 };
90
91 static struct rt2880_pmx_group mt7620a_pinmux_data[] = {
92 GRP("i2c", i2c_grp, 1, MT7620_GPIO_MODE_I2C),
93 GRP("uartf", uartf_grp, MT7620_GPIO_MODE_UART0_MASK,
94 MT7620_GPIO_MODE_UART0_SHIFT),
95 GRP("spi", spi_grp, 1, MT7620_GPIO_MODE_SPI),
96 GRP("uartlite", uartlite_grp, 1, MT7620_GPIO_MODE_UART1),
97 GRP_G("wdt", wdt_grp, MT7620_GPIO_MODE_WDT_MASK,
98 MT7620_GPIO_MODE_WDT_GPIO, MT7620_GPIO_MODE_WDT_SHIFT),
99 GRP_G("mdio", mdio_grp, MT7620_GPIO_MODE_MDIO_MASK,
100 MT7620_GPIO_MODE_MDIO_GPIO, MT7620_GPIO_MODE_MDIO_SHIFT),
101 GRP("rgmii1", rgmii1_grp, 1, MT7620_GPIO_MODE_RGMII1),
102 GRP("spi refclk", refclk_grp, 1, MT7620_GPIO_MODE_SPI_REF_CLK),
103 GRP_G("pcie", pcie_rst_grp, MT7620_GPIO_MODE_PCIE_MASK,
104 MT7620_GPIO_MODE_PCIE_GPIO, MT7620_GPIO_MODE_PCIE_SHIFT),
105 GRP_G("nd_sd", nd_sd_grp, MT7620_GPIO_MODE_ND_SD_MASK,
106 MT7620_GPIO_MODE_ND_SD_GPIO, MT7620_GPIO_MODE_ND_SD_SHIFT),
107 GRP("rgmii2", rgmii2_grp, 1, MT7620_GPIO_MODE_RGMII2),
108 GRP("wled", wled_grp, 1, MT7620_GPIO_MODE_WLED),
109 GRP("ephy", ephy_grp, 1, MT7620_GPIO_MODE_EPHY),
110 GRP("pa", pa_grp, 1, MT7620_GPIO_MODE_PA),
111 { 0 }
112 };
113
114 static struct rt2880_pmx_func pwm1_grp_mt7628[] = {
115 FUNC("sdxc d6", 3, 19, 1),
116 FUNC("utif", 2, 19, 1),
117 FUNC("gpio", 1, 19, 1),
118 FUNC("pwm1", 0, 19, 1),
119 };
120
121 static struct rt2880_pmx_func pwm0_grp_mt7628[] = {
122 FUNC("sdxc d7", 3, 18, 1),
123 FUNC("utif", 2, 18, 1),
124 FUNC("gpio", 1, 18, 1),
125 FUNC("pwm0", 0, 18, 1),
126 };
127
128 static struct rt2880_pmx_func uart2_grp_mt7628[] = {
129 FUNC("sdxc d5 d4", 3, 20, 2),
130 FUNC("pwm", 2, 20, 2),
131 FUNC("gpio", 1, 20, 2),
132 FUNC("uart2", 0, 20, 2),
133 };
134
135 static struct rt2880_pmx_func uart1_grp_mt7628[] = {
136 FUNC("sw_r", 3, 45, 2),
137 FUNC("pwm", 2, 45, 2),
138 FUNC("gpio", 1, 45, 2),
139 FUNC("uart1", 0, 45, 2),
140 };
141
142 static struct rt2880_pmx_func i2c_grp_mt7628[] = {
143 FUNC("-", 3, 4, 2),
144 FUNC("debug", 2, 4, 2),
145 FUNC("gpio", 1, 4, 2),
146 FUNC("i2c", 0, 4, 2),
147 };
148
149 static struct rt2880_pmx_func refclk_grp_mt7628[] = { FUNC("refclk", 0, 37, 1) };
150 static struct rt2880_pmx_func perst_grp_mt7628[] = { FUNC("perst", 0, 36, 1) };
151 static struct rt2880_pmx_func wdt_grp_mt7628[] = { FUNC("wdt", 0, 38, 1) };
152 static struct rt2880_pmx_func spi_grp_mt7628[] = { FUNC("spi", 0, 7, 4) };
153
154 static struct rt2880_pmx_func sd_mode_grp_mt7628[] = {
155 FUNC("jtag", 3, 22, 8),
156 FUNC("utif", 2, 22, 8),
157 FUNC("gpio", 1, 22, 8),
158 FUNC("sdxc", 0, 22, 8),
159 };
160
161 static struct rt2880_pmx_func uart0_grp_mt7628[] = {
162 FUNC("-", 3, 12, 2),
163 FUNC("-", 2, 12, 2),
164 FUNC("gpio", 1, 12, 2),
165 FUNC("uart0", 0, 12, 2),
166 };
167
168 static struct rt2880_pmx_func i2s_grp_mt7628[] = {
169 FUNC("antenna", 3, 0, 4),
170 FUNC("pcm", 2, 0, 4),
171 FUNC("gpio", 1, 0, 4),
172 FUNC("i2s", 0, 0, 4),
173 };
174
175 static struct rt2880_pmx_func spi_cs1_grp_mt7628[] = {
176 FUNC("-", 3, 6, 1),
177 FUNC("refclk", 2, 6, 1),
178 FUNC("gpio", 1, 6, 1),
179 FUNC("spi cs1", 0, 6, 1),
180 };
181
182 static struct rt2880_pmx_func spis_grp_mt7628[] = {
183 FUNC("pwm_uart2", 3, 14, 4),
184 FUNC("utif", 2, 14, 4),
185 FUNC("gpio", 1, 14, 4),
186 FUNC("spis", 0, 14, 4),
187 };
188
189 static struct rt2880_pmx_func gpio_grp_mt7628[] = {
190 FUNC("pcie", 3, 11, 1),
191 FUNC("refclk", 2, 11, 1),
192 FUNC("gpio", 1, 11, 1),
193 FUNC("gpio", 0, 11, 1),
194 };
195
196 static struct rt2880_pmx_func p4led_kn_grp_mt7628[] = {
197 FUNC("jtag", 3, 30, 1),
198 FUNC("utif", 2, 30, 1),
199 FUNC("gpio", 1, 30, 1),
200 FUNC("p4led_kn", 0, 30, 1),
201 };
202
203 static struct rt2880_pmx_func p3led_kn_grp_mt7628[] = {
204 FUNC("jtag", 3, 31, 1),
205 FUNC("utif", 2, 31, 1),
206 FUNC("gpio", 1, 31, 1),
207 FUNC("p3led_kn", 0, 31, 1),
208 };
209
210 static struct rt2880_pmx_func p2led_kn_grp_mt7628[] = {
211 FUNC("jtag", 3, 32, 1),
212 FUNC("utif", 2, 32, 1),
213 FUNC("gpio", 1, 32, 1),
214 FUNC("p2led_kn", 0, 32, 1),
215 };
216
217 static struct rt2880_pmx_func p1led_kn_grp_mt7628[] = {
218 FUNC("jtag", 3, 33, 1),
219 FUNC("utif", 2, 33, 1),
220 FUNC("gpio", 1, 33, 1),
221 FUNC("p1led_kn", 0, 33, 1),
222 };
223
224 static struct rt2880_pmx_func p0led_kn_grp_mt7628[] = {
225 FUNC("jtag", 3, 34, 1),
226 FUNC("rsvd", 2, 34, 1),
227 FUNC("gpio", 1, 34, 1),
228 FUNC("p0led_kn", 0, 34, 1),
229 };
230
231 static struct rt2880_pmx_func wled_kn_grp_mt7628[] = {
232 FUNC("rsvd", 3, 35, 1),
233 FUNC("rsvd", 2, 35, 1),
234 FUNC("gpio", 1, 35, 1),
235 FUNC("wled_kn", 0, 35, 1),
236 };
237
238 static struct rt2880_pmx_func p4led_an_grp_mt7628[] = {
239 FUNC("jtag", 3, 39, 1),
240 FUNC("utif", 2, 39, 1),
241 FUNC("gpio", 1, 39, 1),
242 FUNC("p4led_an", 0, 39, 1),
243 };
244
245 static struct rt2880_pmx_func p3led_an_grp_mt7628[] = {
246 FUNC("jtag", 3, 40, 1),
247 FUNC("utif", 2, 40, 1),
248 FUNC("gpio", 1, 40, 1),
249 FUNC("p3led_an", 0, 40, 1),
250 };
251
252 static struct rt2880_pmx_func p2led_an_grp_mt7628[] = {
253 FUNC("jtag", 3, 41, 1),
254 FUNC("utif", 2, 41, 1),
255 FUNC("gpio", 1, 41, 1),
256 FUNC("p2led_an", 0, 41, 1),
257 };
258
259 static struct rt2880_pmx_func p1led_an_grp_mt7628[] = {
260 FUNC("jtag", 3, 42, 1),
261 FUNC("utif", 2, 42, 1),
262 FUNC("gpio", 1, 42, 1),
263 FUNC("p1led_an", 0, 42, 1),
264 };
265
266 static struct rt2880_pmx_func p0led_an_grp_mt7628[] = {
267 FUNC("jtag", 3, 43, 1),
268 FUNC("rsvd", 2, 43, 1),
269 FUNC("gpio", 1, 43, 1),
270 FUNC("p0led_an", 0, 43, 1),
271 };
272
273 static struct rt2880_pmx_func wled_an_grp_mt7628[] = {
274 FUNC("rsvd", 3, 44, 1),
275 FUNC("rsvd", 2, 44, 1),
276 FUNC("gpio", 1, 44, 1),
277 FUNC("wled_an", 0, 44, 1),
278 };
279
280 #define MT7628_GPIO_MODE_MASK 0x3
281
282 #define MT7628_GPIO_MODE_P4LED_KN 58
283 #define MT7628_GPIO_MODE_P3LED_KN 56
284 #define MT7628_GPIO_MODE_P2LED_KN 54
285 #define MT7628_GPIO_MODE_P1LED_KN 52
286 #define MT7628_GPIO_MODE_P0LED_KN 50
287 #define MT7628_GPIO_MODE_WLED_KN 48
288 #define MT7628_GPIO_MODE_P4LED_AN 42
289 #define MT7628_GPIO_MODE_P3LED_AN 40
290 #define MT7628_GPIO_MODE_P2LED_AN 38
291 #define MT7628_GPIO_MODE_P1LED_AN 36
292 #define MT7628_GPIO_MODE_P0LED_AN 34
293 #define MT7628_GPIO_MODE_WLED_AN 32
294 #define MT7628_GPIO_MODE_PWM1 30
295 #define MT7628_GPIO_MODE_PWM0 28
296 #define MT7628_GPIO_MODE_UART2 26
297 #define MT7628_GPIO_MODE_UART1 24
298 #define MT7628_GPIO_MODE_I2C 20
299 #define MT7628_GPIO_MODE_REFCLK 18
300 #define MT7628_GPIO_MODE_PERST 16
301 #define MT7628_GPIO_MODE_WDT 14
302 #define MT7628_GPIO_MODE_SPI 12
303 #define MT7628_GPIO_MODE_SDMODE 10
304 #define MT7628_GPIO_MODE_UART0 8
305 #define MT7628_GPIO_MODE_I2S 6
306 #define MT7628_GPIO_MODE_CS1 4
307 #define MT7628_GPIO_MODE_SPIS 2
308 #define MT7628_GPIO_MODE_GPIO 0
309
310 static struct rt2880_pmx_group mt7628an_pinmux_data[] = {
311 GRP_G("pwm1", pwm1_grp_mt7628, MT7628_GPIO_MODE_MASK,
312 1, MT7628_GPIO_MODE_PWM1),
313 GRP_G("pwm0", pwm0_grp_mt7628, MT7628_GPIO_MODE_MASK,
314 1, MT7628_GPIO_MODE_PWM0),
315 GRP_G("uart2", uart2_grp_mt7628, MT7628_GPIO_MODE_MASK,
316 1, MT7628_GPIO_MODE_UART2),
317 GRP_G("uart1", uart1_grp_mt7628, MT7628_GPIO_MODE_MASK,
318 1, MT7628_GPIO_MODE_UART1),
319 GRP_G("i2c", i2c_grp_mt7628, MT7628_GPIO_MODE_MASK,
320 1, MT7628_GPIO_MODE_I2C),
321 GRP("refclk", refclk_grp_mt7628, 1, MT7628_GPIO_MODE_REFCLK),
322 GRP("perst", perst_grp_mt7628, 1, MT7628_GPIO_MODE_PERST),
323 GRP("wdt", wdt_grp_mt7628, 1, MT7628_GPIO_MODE_WDT),
324 GRP("spi", spi_grp_mt7628, 1, MT7628_GPIO_MODE_SPI),
325 GRP_G("sdmode", sd_mode_grp_mt7628, MT7628_GPIO_MODE_MASK,
326 1, MT7628_GPIO_MODE_SDMODE),
327 GRP_G("uart0", uart0_grp_mt7628, MT7628_GPIO_MODE_MASK,
328 1, MT7628_GPIO_MODE_UART0),
329 GRP_G("i2s", i2s_grp_mt7628, MT7628_GPIO_MODE_MASK,
330 1, MT7628_GPIO_MODE_I2S),
331 GRP_G("spi cs1", spi_cs1_grp_mt7628, MT7628_GPIO_MODE_MASK,
332 1, MT7628_GPIO_MODE_CS1),
333 GRP_G("spis", spis_grp_mt7628, MT7628_GPIO_MODE_MASK,
334 1, MT7628_GPIO_MODE_SPIS),
335 GRP_G("gpio", gpio_grp_mt7628, MT7628_GPIO_MODE_MASK,
336 1, MT7628_GPIO_MODE_GPIO),
337 GRP_G("wled_an", wled_an_grp_mt7628, MT7628_GPIO_MODE_MASK,
338 1, MT7628_GPIO_MODE_WLED_AN),
339 GRP_G("p0led_an", p0led_an_grp_mt7628, MT7628_GPIO_MODE_MASK,
340 1, MT7628_GPIO_MODE_P0LED_AN),
341 GRP_G("p1led_an", p1led_an_grp_mt7628, MT7628_GPIO_MODE_MASK,
342 1, MT7628_GPIO_MODE_P1LED_AN),
343 GRP_G("p2led_an", p2led_an_grp_mt7628, MT7628_GPIO_MODE_MASK,
344 1, MT7628_GPIO_MODE_P2LED_AN),
345 GRP_G("p3led_an", p3led_an_grp_mt7628, MT7628_GPIO_MODE_MASK,
346 1, MT7628_GPIO_MODE_P3LED_AN),
347 GRP_G("p4led_an", p4led_an_grp_mt7628, MT7628_GPIO_MODE_MASK,
348 1, MT7628_GPIO_MODE_P4LED_AN),
349 GRP_G("wled_kn", wled_kn_grp_mt7628, MT7628_GPIO_MODE_MASK,
350 1, MT7628_GPIO_MODE_WLED_KN),
351 GRP_G("p0led_kn", p0led_kn_grp_mt7628, MT7628_GPIO_MODE_MASK,
352 1, MT7628_GPIO_MODE_P0LED_KN),
353 GRP_G("p1led_kn", p1led_kn_grp_mt7628, MT7628_GPIO_MODE_MASK,
354 1, MT7628_GPIO_MODE_P1LED_KN),
355 GRP_G("p2led_kn", p2led_kn_grp_mt7628, MT7628_GPIO_MODE_MASK,
356 1, MT7628_GPIO_MODE_P2LED_KN),
357 GRP_G("p3led_kn", p3led_kn_grp_mt7628, MT7628_GPIO_MODE_MASK,
358 1, MT7628_GPIO_MODE_P3LED_KN),
359 GRP_G("p4led_kn", p4led_kn_grp_mt7628, MT7628_GPIO_MODE_MASK,
360 1, MT7628_GPIO_MODE_P4LED_KN),
361 { 0 }
362 };
363
mt7620_pinmux_probe(struct platform_device * pdev)364 static int mt7620_pinmux_probe(struct platform_device *pdev)
365 {
366 if (is_mt76x8())
367 return rt2880_pinmux_init(pdev, mt7628an_pinmux_data);
368 else
369 return rt2880_pinmux_init(pdev, mt7620a_pinmux_data);
370 }
371
372 static const struct of_device_id mt7620_pinmux_match[] = {
373 { .compatible = "ralink,rt2880-pinmux" },
374 {}
375 };
376 MODULE_DEVICE_TABLE(of, mt7620_pinmux_match);
377
378 static struct platform_driver mt7620_pinmux_driver = {
379 .probe = mt7620_pinmux_probe,
380 .driver = {
381 .name = "rt2880-pinmux",
382 .of_match_table = mt7620_pinmux_match,
383 },
384 };
385
mt7620_pinmux_init(void)386 static int __init mt7620_pinmux_init(void)
387 {
388 return platform_driver_register(&mt7620_pinmux_driver);
389 }
390 core_initcall_sync(mt7620_pinmux_init);
391
